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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Int J Drug Policy. 2014 Dec 2;26(7):675–681. doi: 10.1016/j.drugpo.2014.11.010

Table 2.

Estimates of the Prevalence of Non-Fatal Overdose in the Previous Six Months

Estimators Estimated 6-month Period Prevalence of Non-Fatal Overdose 95% Confidence Interval
Sample mean, bootstrap CI 20.2% 16.5% – 23.9%
RDS-I, bootstrap CI 12.1% 7.7% – 16.5%
RDS-II, bootstrap CI 12.3% 7.9% – 16.6%

Seeds excluded in all above calculations.